RE: Rad Sources for Workshops

[Brian Rees <brees@LANL.GOV>]

If you look on ebay you can usually find LOTS of radium watch hands.  I 

just took a look, 61 for $7.00 - but price will probably end up ~$ 

20.00.  There's also uranium doped marbles - but not as hot.  Use "radium" 

as search term.

I've got a working radium dial watch I got from ebay to use for (non 

work-related) demos, but have stayed away from something like watch hands 

since I figured some regulator with nothing better to do could give me 

trouble at some time since they're not really part of a consumer product.

I found that Wal-Mart sells the radioactive lantern mantles for $0.99 each 

- the non-radioactive Coleman mantles were like $2.50.  They make great 

sources.

I don't believe it's legal to take the source out of a smoke detector - 

part of the general license requirements.

No-salt's OK for sensitive detectors, but not for dose instruments.

Fiesta ware can be fairly inexpensive - ebay again, or even antique stores 

- I've gotten (salad sized) plates for as little as 3 dollars.



(Obviously) My personal opinions

Brian Rees





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